<template>
  <div id="app">
     <router-view v-if="isRouterAlive"></router-view>
  </div>
</template>

<script>
// import HelloWorld from './components/HelloWorld.vue'

export default {
  name: "App",
  components: {
    // HelloWorld
  },
  provide() {
    // 注册一个方法
    return {
      reload: this.reload,
    };
  },
  data() {
    return {
      isRouterAlive: true,
    };
  },
  methods: {

    // 刷新页面的方法
    reload() {
      this.isRouterAlive = false;
      this.$nextTick(function () {
        this.isRouterAlive = true;
      });
    },
  },
};
</script>

<style >
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
}
</style>
